You have a growing win condition of Commander Damage, you get to draw cards, and you have an alternate win condition in burn to each opponent
With his I Wreck Things ability, you get to banish an item or location to gain two extra lore, which is great since Ralph is already questing for three lore on his own
Magic: The Gathering Revival Trance Duskmourn House of Horror: Jump Scare
I suspect with the relatively high activation cost, the latter is where most players will go with it
You can easily cast him with the hybrid mana option, and you can even run him in Mono-Blue, Mono-Black, , or whatever
Harmonious Emergence's replacement effect applied whether the enchanted land would be destroyed due to lethal damage or any other reason